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2.3.5.3 Scan control block
(1) Run button
Run or freeze scanning. The button is
when scanning and changed to while scan
is frozen.
To stop scanning, click the button. Scanning continues until it goes to the end of the frame
and then, stops. If you wish to stop scanning immediately, click the button again.
(2) Scan speed buttons (TV1 to Red1 in above picture)
8 scanning speeds are assigned to 4 buttons. Each of buttons sets 2 scanning speed
alternately.
To assign scanning speed to each button, click
button. The following dialog will be shown.
Select a speed for each button and click OK.
2.3.5.4 Auto control
(1) ABC
Starts auto brightness/contrast adjustment (ABCC). If the results of ABCC are not adequate,
you can change the reference brightness and contrast in the Image tab of the Setup dialog
window. ABCC is applicable to SE and YAG BSE signal.
(2) AFC
Starts Auto Focus.
When magnification is lower than 5,000X, coarse focus (search using a wide focus range) is
carried out. Fine focus (search using a narrow focus range) is carried out at magnifications
higher than 5,000X.
Fine focus works correctly under conditions where the image is not clear but visible.
The result of Auto Focus depends on the surface structures of the specimen. When there is